US Bridges

SH 285 over Palo Blanco Creek

Good

Brooks County, Texas · 0.40 MI E of US 281 · Structure no. 210240010207078

Built
1976
49 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
44 ft
5 main spans
Daily traffic
8,648
2023 count
Owner
State
State Highway Agency

About this bridge

SH 285 over Palo Blanco Creek is a concrete culvert carrying SH 285 over Palo Blanco Creek in Brooks County, Texas. It was built in 1976, so it is 49 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,648 vehicles a day, roughly 17% of them trucks, projected to reach 12,107 by 2042. The structure is 44 ft (13.4 m) long and 77 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 285
CrossesPalo Blanco Creek
Location0.40 MI E of US 281
RouteState Highway 285
StateTexas
Coordinates27.22607, -98.13852
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span7 ft (2.1 m)
Deck width77 ft (23.6 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,648 (2023)
Projected traffic12,107 by 2042
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 285 over Palo Blanco Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is SH 285 over Palo Blanco Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does SH 285 over Palo Blanco Creek carry?

About 8,648 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SH 285 over Palo Blanco Creek?

The structure is 44 ft (13.4 m) long with a longest span of 7 ft (2.1 m) and a deck 77 ft wide.

Who owns SH 285 over Palo Blanco Creek?

It is owned by the State Highway Agency.